PVT surface and thermodynamic properties of isopentane

Abstract

A number of correlational studies presents both vapor liquid coexistence and superheated vapor thermodynamic properties of n-butane. The present compilation is part of a general revision of the j-Tables of API Research Project 44 (31) for C/sub 1/-C/sub 5/ alkanes. Selected values of vapor pressure, specific volume, enthalpy, and entropy are presented for saturated liquid and vaporous n-butane from the normal boiling point (272.67/sup 0/K) to the critical point (425.16/sup 0/K). Tabular data show the following: (1) physical and conversion constants used in this investigation; (2) critical constants of n-butane; (3) saturated properties of n-butane; (4) comparison of enthalpies of vaporization; (5) comparison of saturated liquid enthalpies; (6) comparison of saturated liquid entropies; (7) constants for the DR-BWR equation; (8) condensed thermodynamic properites of n-butane; (9) compressibility factors from corresponding states; and (10) second virial coefficients. (37 refs.)